CN201444583U - Three-phase imbalance monitoring and adjusting system - Google Patents
Three-phase imbalance monitoring and adjusting system Download PDFInfo
- Publication number
- CN201444583U CN201444583U CN2009200005086U CN200920000508U CN201444583U CN 201444583 U CN201444583 U CN 201444583U CN 2009200005086 U CN2009200005086 U CN 2009200005086U CN 200920000508 U CN200920000508 U CN 200920000508U CN 201444583 U CN201444583 U CN 201444583U
- Authority
- CN
- China
- Prior art keywords
- phase
- power supply
- processing unit
- monitoring
- data processing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
Abstract
A three-phase imbalance monitoring and adjusting system comprises a centralized meter reading system composed of a user ammeter, a power supply transformer and a power utilization center, wherein a three-phase monitoring terminal is installed between a user ammeter group and the power supply transformer, electricity of the three-phase monitoring terminal is provided by the power supply transformer, a checking meter is installed between the power supply transformer and the three-phase monitoring terminal, the three-phase monitoring terminal is composed of a 485 interface, a three-phase processing unit, a data processing unit, a controller, a display screen and a power supply/standby power supply, the 485 interface is connected with the data processing unit, the data processing unit and the three-phase processing unit are respectively connected with the controller, the controller and the data processing unit are respectively connected with the display screen, and the power supply/standby power supply provides electricity for the modules. The three-phase imbalance monitoring and adjusting system of the utility model realizes three-phase imbalance automatic monitoring, has high monitoring accuracy, can put forward three-phase adjusting suggestions in time, is convenient for adjusting three-phase load, is beneficial for three-phase balance power supply, and improves the power supply quality.
Description
Technical field
The utility model relates to a kind of power equipment, particularly a kind of three-phase imbalance monitoring and Adjustment System.
Background technology
Supply electricity consumption enterprise in daily operation maintenance process, for the unbalanced problem of three-phase load, owing to there is not the notion of quantification, the general staff not too payes attention to the balance of three-phase load, single-phase load has become the chief component of electric load, though low-voltage circuit mostly is three-phase and four-line, in the electric network reconstruction process, inabundant attention is assigned to the single-phase load equilibrium on the three-phase, and also has the single-phase-two-wire circuit of some.Measure the work of low-voltage circuit three-phase load, usually utilize the three-phase electricity flow valuve in a certain moment of clamp on amperemeter manual measurement, as the foundation of adjusting the transformer three-phase load, the current value representativeness is relatively poor, can not truly reflect the load condition of overall process.On the angle of statistics, the three-phase load degree of unbalance that the single-phase electricity value that adds up not as employing comes the Comprehensive Assessment transformer.
In general remote centralized meter-reading system, concentrator just can be with the copy reading of ammeter reading and the storage of power consumer, can not make judgement to each user or every group of user's place is separate.
So can not carry out periodic monitor to three-phase equilibrium in existing remote centralized meter-reading system, because the limitation that artificial three-phase imbalance is measured can't obtain tri-phase unbalance factor under a certain the district timely and accurately.
The utility model content
At the problems referred to above, the utility model provides a kind of can monitor three-phase imbalance automatically, improve the promptness and the accuracy of three-phase imbalance monitoring, reduces the three-phase imbalance monitoring and the Adjustment System of personal monitoring's three-phase imbalance cost.
Uneven prison weighing apparatus monitoring of the utility model three-phase and Adjustment System, comprise electric supply meter, supply transformer and use electrfic centre, wherein: a three-phase monitoring terminal is installed between described electric supply meter group and supply transformer, described three-phase monitoring terminal connects described supply transformer by power line, and a table of merit rating is installed between described supply transformer and three-phase monitoring terminal.
Uneven prison weighing apparatus monitoring of the utility model three-phase and Adjustment System, wherein: described three-phase monitoring terminal is made up of 485 interfaces, three-phase processing unit, data processing unit, controller, display screen and power supply/stand-by power supply, described 485 interfaces connect described data processing unit, described data processing unit is connected controller respectively with the three-phase processing unit, described controller is connected described display screen respectively with data processing unit, described power supply/stand-by power supply is above-mentioned module for power supply, and power supply/stand-by power supply is the power supply of three-phase processing unit.
The monitoring of the uneven prison weighing apparatus of the utility model three-phase and Adjustment System have realized that three-phase imbalance monitors automatically, the monitoring accuracy height, and three-phase adjustment suggestion can in time be proposed, and made things convenient for the rapid adjustment three-phase load, help the three-phase balanced power supply, improved power supply quality.
Description of drawings
Fig. 1 is existing remote auto meter reading system frame diagram;
Fig. 2 is monitoring of the utility model three-phase and Adjustment System frame diagram;
Fig. 3 is a three-phase monitoring terminal circuit block diagram in monitoring of the utility model three-phase and the Adjustment System.
Fig. 4 is the unbalanced monitoring curve of electric power system three-phase electricity consumption.
Embodiment
For further setting forth monitoring of the utility model three-phase and Adjustment System, do more detailed explanation below in conjunction with embodiment.
Fig. 2 is the frame diagram of monitoring of the utility model three-phase and Adjustment System, and this is the improvement on automatic meter reading system basis shown in Figure 1, can make full use of existing automatic meter reading system resource.
Uneven prison weighing apparatus monitoring of the utility model three-phase and Adjustment System, comprise electric supply meter, supply transformer and use electrfic centre, one three-phase monitoring terminal is installed between electric supply meter group and supply transformer, the three-phase monitoring terminal connects supply transformer by power line, be exactly to power by supply transformer, one table of merit rating is installed between supply transformer and three-phase monitoring terminal, is used for monitoring the parameters (comprise voltage, electric current, power, branch phase voltage, divide phase current, phase-splitting power) of supply transformer.
The three-phase monitoring terminal is made up of 485 interfaces, three-phase processing unit, data processing unit, controller, display screen and power supply/stand-by power supply, 485 interfaces connect data processing unit, data processing unit is connected controller respectively with the three-phase processing unit, controller is connected display screen respectively with data processing unit, power supply/stand-by power supply is above-mentioned module for power supply, and power supply/stand-by power supply is the power supply of three-phase processing unit.
485 interfaces are used for reading the various data (comprise voltage, electric current, power, branch phase voltage, divide phase current, phase-splitting power) of distribution transformer, and the data that read participate in the adjustment of three-phase imbalance, and the verification msg in later stage is provided.
Three-phase processing unit: according to the three-phase discrimination principles, determine the separate of place circuit, to gathering next electric weight by delivering in the data processing unit mutually, so that data processing unit is analyzed the three-phase equilibrium situation.
Data processing unit: major function is to handle from 485 interfaces data that read and the data of handling the three-phase processing unit, total electric weight of calculating A, B, C three-phase, power, electric current etc., and it is poor to differentiate the three-phase electric weight, draws the degree of unbalance of electric weight.
Controller: main will be presented at the content of display screen and the partial data in the reasonable deal with data unit, and it provides certain caution sound to the uneven electric energy control that exceeds certain limit, and obtain three-phase adjustment suggestion with control.
The monitoring of the uneven prison weighing apparatus of the utility model three-phase is separate with the place that Adjustment System can be differentiated each user or every group of user automatically, and be stored in the three-phase monitoring terminal, for the differentiation of three-phase, mainly be in the three-phase monitoring terminal, to add an identification module, and have memory function.System will provide the uneven adjustment scheme of a cover according to management of power use personnel's requirement when finding that imbalance surpasses certain fate and limit, comprise contents such as every group of total electric weight, the total electric weight of phase-splitting, adjusted theoretical unbalance factor.Management of power use personnel can manually adjust according to concrete grammar given in the adjustment scheme.
With No. eight neighbours in Tianjin road of sub-argument place, Luoyang electric company west city administration (hereinafter to be referred as: days eight) the 1# case becomes example, it eight 1# case becomes the C phase electric weight in September, 2008 apparently higher than A, B two-phase, the Gao Shike of three-phase electric weight unbalance factor reaches: 37.3%, also reach when minimum: 19.64% (see figure 4).
After native system was installed, from the data of system monitoring, this unbalance factor of distinguishing every day all maintained higher level, and system has provided the adjustment scheme in October.Management of power use personnel are by artificial adjustment unit phase place, and the three-phase electric weight of A, B, C reaches unanimity.Its three-phase electric weight unbalance factor can reduce to 0.91% by original 29.13% in theory.Adjusted three-phase electric weight tends to balance substantially, and the rate that do not weigh three-phase day is by original average 29.93%, is reduced on average 7.17%, sees the following form.
In each scheme electric weight day in September, 2008 uneven counting rate meter
Claims (2)
1. a three-phase imbalance is monitored and Adjustment System, comprise electric supply meter, supply transformer and use electrfic centre, it is characterized in that: a three-phase monitoring terminal is installed between described electric supply meter group and supply transformer, described three-phase monitoring terminal connects described supply transformer by power line, and a table of merit rating is installed between described supply transformer and three-phase monitoring terminal.
2. three-phase imbalance monitoring according to claim 1 and Adjustment System, it is characterized in that: described three-phase monitoring terminal is made up of 485 interfaces, three-phase processing unit, data processing unit, controller, display screen and power supply/stand-by power supply, described 485 interfaces connect described data processing unit, described data processing unit is connected controller respectively with the three-phase processing unit, described controller is connected described display screen respectively with data processing unit, and described power supply/stand-by power supply is the power supply of three-phase processing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200005086U CN201444583U (en) | 2009-01-06 | 2009-01-06 | Three-phase imbalance monitoring and adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200005086U CN201444583U (en) | 2009-01-06 | 2009-01-06 | Three-phase imbalance monitoring and adjusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201444583U true CN201444583U (en) | 2010-04-28 |
Family
ID=42549264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200005086U Expired - Fee Related CN201444583U (en) | 2009-01-06 | 2009-01-06 | Three-phase imbalance monitoring and adjusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201444583U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684213A (en) * | 2012-06-08 | 2012-09-19 | 平阴县供电公司 | Low-voltage three-phase load unbalance automatic regulation system |
| CN103345871A (en) * | 2013-07-16 | 2013-10-09 | 南京丹迪克科技开发有限公司 | Three-phase imbalance adjusting practical training device and using method thereof |
| CN105406492A (en) * | 2015-09-17 | 2016-03-16 | 国网江西省电力公司赣西供电分公司 | Three-phase electric load automatic balance algorithm |
| CN109001547A (en) * | 2017-06-07 | 2018-12-14 | 广东电网有限责任公司佛山供电局 | A kind of power distribution voltage imbalance judgment method based on metering centralized meter reading terminal data |
| CN111381119A (en) * | 2018-12-29 | 2020-07-07 | 范海亭 | Lighting power distribution equipment operation monitoring method and monitoring system |
-
2009
- 2009-01-06 CN CN2009200005086U patent/CN201444583U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684213A (en) * | 2012-06-08 | 2012-09-19 | 平阴县供电公司 | Low-voltage three-phase load unbalance automatic regulation system |
| CN103345871A (en) * | 2013-07-16 | 2013-10-09 | 南京丹迪克科技开发有限公司 | Three-phase imbalance adjusting practical training device and using method thereof |
| CN105406492A (en) * | 2015-09-17 | 2016-03-16 | 国网江西省电力公司赣西供电分公司 | Three-phase electric load automatic balance algorithm |
| CN105406492B (en) * | 2015-09-17 | 2018-07-17 | 国网江西省电力公司赣西供电分公司 | A kind of three-phase electric load autobalance algorithm |
| CN109001547A (en) * | 2017-06-07 | 2018-12-14 | 广东电网有限责任公司佛山供电局 | A kind of power distribution voltage imbalance judgment method based on metering centralized meter reading terminal data |
| CN111381119A (en) * | 2018-12-29 | 2020-07-07 | 范海亭 | Lighting power distribution equipment operation monitoring method and monitoring system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2224993C (en) | Revenue accuracy meter having power quality measurement and method of measuring power quality | |
| CN201444583U (en) | Three-phase imbalance monitoring and adjusting system | |
| CN103501058B (en) | Based on the energy efficiency management system of Intelligent platform zone | |
| CN105389645B (en) | Supply-demand balance analysis method and supply-demand balance analysis system based on electric power, electric quantity and peak regulation balance | |
| CN101958544B (en) | System and method for calculating line loss rate of electric power distribution line | |
| CN103187735B (en) | Bidirectional intelligent gateway device for distributed new energy grid connection | |
| CN101404414A (en) | Power distribution network electromagnetic optimization dynamic loss reduction method, system and synthetic loss reduction system | |
| CN202486224U (en) | Line loss measuring and calculating device of power distribution network | |
| CN109713660A (en) | Direct-current grid parallel connection energy-storage battery state-of-charge balance control method and device | |
| CN111564898A (en) | Multifunctional intelligent control system based on intelligent electric meter | |
| CN103149471A (en) | Calibration method and calibration device for battery charger and charging pile | |
| CN202353321U (en) | Intelligent comprehensive electricity-distributing metering meter box | |
| CN103364631A (en) | High-voltage user photovoltaic power generation electric energy metering system and method thereof | |
| CN103439546A (en) | Electric energy measuring system and method for low-voltage user photovoltaic power generation | |
| CN108490285B (en) | Low-voltage transformer area line loss rate calculation method based on voltage drop method | |
| CN109274109A (en) | A kind of comprehensive power quality optimization system | |
| CN103777046B (en) | Variable specific current transformer intelligent controlling device | |
| CN207894996U (en) | A kind of solar photovoltaic power plant electric energy metered system | |
| CN203479855U (en) | Photovoltaic generating electric energy metering system for low-voltage users | |
| CN203350356U (en) | High-voltage user photovoltaic power generation energy metering system | |
| CN111122968A (en) | Real-time metering and monitoring system and method for power data and power quality | |
| CN202033417U (en) | Power saving rate verification system of power saver | |
| CN201887483U (en) | Reactive compensation intelligent monitoring manager | |
| CN203849399U (en) | Single-phase carrier wave intelligent electric energy meter mis-power failure fault analyzer | |
| CN102624091A (en) | Alternating current distribution multi-loop monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20130106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |